Review of spark plugs ez-standart a17dvrm 1.0, reviews from car owners and experts

01/19/2022 17,774 Ignition system

Author: Ivan Baranov

As you know, the purpose of spark plugs (SZ) is to ensure the transmission of a spark to ignite the air-fuel mixture. A lot depends on the quality of the SZ, in particular, the stable operation of the engine, as well as the start of the power unit. In this article we will tell you what Russian-made A17DVRM spark plugs are and whether they are as high quality as the manufacturer claims.

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Replacing iridium spark plugs

Replacing spark plugs is simple.
Even a beginner can handle this. First you need to remove the armor wire and unscrew the spark plug. A new one is screwed in and the armor wire is put on. The replacement has been made. But before you start removing the old spark plug and replacing it with a new one, you need to carefully inspect the spark plug well. Dirt and liquid usually accumulate there. If this dirt gets into the spark plug cylinder, something irreparable can happen. That is why you need to carefully wipe the entire area around and blow out the spark plug well. Now you can start replacing the spark plug.

Experienced bikers believe that when tightening a spark plug, it is better to under-tighten it than vice versa.

The number of electrodes does not determine the quality

A spark plug with three electrodes does not produce three sparks - the breakdown follows the path of least resistance, on one of them. Which one will work at the moment is determined by production, amount of soot and other factors. Electrodes that are not involved in generating a spark will, on the contrary, interfere with the uniform distribution of the flame, plus, they will make it difficult to cool the thermal body of the spark plug with the combustible mixture. Therefore, replacing a spark plug with one electrode with a three-electrode one is not always justified. The only plus is that the service life of parts with several electrodes is longer, due to their “shift” operation.

Plugs with copper electrodes (both or at least one) are better, the spark quality is higher, and cooling is faster!

Source

How to check spark on a spark plug

The best spark plugs
If you experience unstable engine operation, it begins to “triple”, it is quite possible that the time has come to change the spark plugs, or the PVN, or the ignition module needs to be replaced. So, first, let's check the spark plugs of the VAZ 2114, most often the reason is in them.

We remove the PVN tips from the spark plugs
Unscrew all 4 spark plugs (you will need a 21 key)
We put the tip on the spark plug and lean it against the metal (possibly against the body of the engine block)

We start turning the starter and look at the spark plug, if there is a spark, then the spark plug is working. We do the same actions with other candles.

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Which spark plug to buy

Iridium spark plugs

1. Denso PK20PR-P8 is a good replacement for standard spark plugs. You will have to manually set the gap.

2. NGK BKR6EIX – If you are willing to pay for quality, this is a worthy choice. It will not be possible to save on the resource, but stable operation of the motor is guaranteed until the resource is exhausted.

3. Bosch WR7DP - another resource champion. The price is appropriate. Due to its innovative design, it produces a stable spark even when the battery is discharged.

4. Denso K20TXR - a complete analogue of the original spark plug. The coating is nickel, and the quality of work is like that of iridium. Works well only on gasoline.

5. Bosch FR7LDC+ – low cost champion. Just a good candle: don't expect outstanding performance. Unfortunately, popular products are often counterfeited. You should buy only in branded stores.

6. Beru Ultra-X 79 – the best price-quality ratio. Stability of operation does not depend on the quality of gasoline. Works well on liquefied gas.

Non-traditional schemes

Gas-53 diagram - car diagrams. gas ignition circuit 53

Some of the design solutions in spark plugs of an unconventional design can be called conditionally working - by improving one thing, they worsen another. The simplest example is the NGK V-Line series of spark plugs: their central electrode has a groove, so the spark always jumps between the edge of the electrode and the side one. In theory, this improves ignition of the mixture by moving the spark into a better ventilated space and stabilizing the spark point, but the erosion of such a central electrode is accelerated.

Some of the candles on the market cannot be classified as anything other than “Herbalife” from the car market: all sorts of “pre-chamber”, “torch” and so on candles, at best, work no better than standard ones, at worst, they quickly deteriorate. For example, in the notorious “Bugaets” candles, the soldered skirt not only worsened the ventilation of the spark gap, but also burned out, and sometimes went into “free flight” into the combustion chamber. Of the designs that are workable, but useless in the practice of an ordinary motorist, we note only spark plugs that do not have a side electrode at all - they were originally created to work in ultra-high boost engines in order to avoid overheating of the protruding side electrodes; in a normal city cycle on a “civilian” boost level motor, they They clean themselves disgustingly and guarantee rough idling even on ideal quality gasoline.

Which spark plugs for VAZ are better to choose?

How to check spark plugs with a tester

There are a large number of different modifications of the part, which complicates life for motorists. The problem is that each motor is designed for a specific type of spark plug. If you supply the wrong part, a number of negative consequences can arise.

Misfire of the mixture due to the gap between the electrodes of the element being too wide.
Interruptions in the operation of the internal combustion engine caused by too low spark power.
Instant failure of the device due to too much electrode protrusion.

Also, depending on the inconsistencies present, other malfunctions may “pop up” that reduce the comfort of using the car.

What to look for when choosing. AvtoVAZ plant specialists recommend selecting spark plugs according to a number of parameters

Specialists from the AvtoVAZ plant recommend selecting spark plugs according to a number of parameters.

Heat number. The parameter characterizes the rate of heat removal from the working part of the candle. At the same time, the electrode transfers excess heat to the spark plug skirt in a timely manner, which ensures stable operation of the part. If energy is removed too quickly, scale forms on the working part of the part, which prevents normal spark breakdown. If the withdrawal is too slow, the thin electrode overheats. The process provokes the formation of glow ignition. This prevents the engine from operating normally due to detonation of the mixture or its early ignition. Under normal thermal conditions, a spark adequately breaks through the spark plugs and does not form excessive carbon deposits.
Spark gap. Some users know that for the engine to operate correctly, the spark gap on the spark plugs must be maintained. The working gap on VAZ spark plugs is strictly set by the manufacturer of the power plant and is necessary due to the fact that the formed electric arc has a certain strength. As the distance increases, the spark loses stability, which can lead to misfires. In the opposite case, easier starting of the engine is ensured, but when the gas is released, the electric arc current may not be enough. This is justified by the fact that each ignition coil has a certain transformation ratio, usually equal to 2000 units. This means that during the start-up of the internal combustion engine, the elements produce up to 14 kW, and during normal operation it is already 24. Consequently, failure to comply with this parameter can lead to serious disruptions in the operation of the motor.
Departure of the working part of the electrodes. The parameter is critical for adequate operation of the power plant. The spark plugs on the VAZ 8-valve injector, as well as for carburetor models, have electrodes strongly pushed forward. This is due to the fact that the structural parts are located in the corner of the combustion chamber, where there is no adequate ventilation. The overhang of the working part allows for better ignition of the mixture and stabilizes engine operation. If the spark plugs are mounted in a multi-valve engine, where the inserts are located in the center of the valve head, it is recommended to install spark plugs with a deep-set core - this will prevent damage to the electrodes by the piston bottom and an abundance of carbon deposits on the structural elements.
Number of electrodes. Initially, manufacturers position this parameter as a definite plus. When one electrode “burns out,” the spark plug switches to another, which significantly increases its service life. However, not everything is as simple as it seems at first glance. If the mixture is sprayed unevenly in the cylinder (poor ventilation of the combustion chamber), and at this moment the spark jumps to the shadowed part (the place where the exhaust remains), misfire may occur, which will lead to unstable operation of the power plant. Additionally, this fact increases the wear of the catalyst and engine oil, which is critical for VAZ cars.
Manufacturer. The manufacturer of the product is also an important parameter. Users recommend buying from trusted brands that have been on the market for a long time. The cost of such candles will be significant, but with proper selection and operation they will work for a long time and without significant complaints.

By adhering to the specified parameters, a car enthusiast can buy a fairly high-quality product, while saving on the frequency of car servicing and repairs.

Types of candles, their structure

Not enough horsepower during acceleration, slow start, fuel consumption is growing at a gigantic rate, is the car shaking? You need to take a closer look at the heating system. These failures can occur for other reasons, but they are the clearest sign that the ignition is not working properly. Depending on the number of cylinders of the car, the number of spark plugs changes. Let's consider the components of the system design and their functionality:

top terminal: ignition coil connection point;
main body: high voltage generation and heat insulator;
thread: screwing a product into the cylinder head;
electrode: spark source, the most important element, the quality of the system depends on its reliability.

center contact material;
spark gap size;
heat number (the higher it is, the less the product heats up);
overall and connecting dimensions (length and thread pitch);
number of side electrodes;
resource of use;
self-cleaning ability.

There is a variety that has become very popular - iridium spark plugs. Theoretically, their design has a thinner central wire diameter than others, it conducts current better and generates a more powerful spark, which greatly simplifies engine operation. There are many myths that iridium products significantly increase the performance and power of car engines; in practice, the increase in efficiency is not large. Let's look at the best types of glow systems in a little more detail:

Heaters perform the same function in diesel engines as the ignition system in gasoline engines. They are called "preheat plugs"

They are responsible for facilitating cold starts, which is especially important for diesel engines, which are increasingly found on our roads. The heater is a resistor designed to increase the temperature inside the combustion chamber

Its shape resembles a ballpoint pen, one end of which is heated before starting. It is important to remember that it is advisable to replace all elements at the same time so that the work is rhythmic. Plugs are elements that ignite a mixture of gasoline and air inside the combustion chamber. A spark is generated due to a difference in electrical potential. If the motor is operating normally, this process is repeated an average of 2000 times per minute.

If you replace the ignition system in time, you can avoid premature wear of other parts of the vehicle. If you notice any of the following signs, it's time to consider purchasing new devices:

loss of power while driving;
increased fuel consumption, because gasoline combustion occurs incorrectly due to a spark generated at the wrong time;
difficulty starting, especially in cold weather, knocking when the engine is running;
dark smoke on the exhaust.

Let's look at the process of attaching a new heating system, provide step-by-step instructions and tips for installing the product yourself at home.

Characteristics

Spark plugs A17DV-10
Let's start with the main characteristics. The length of the thread of the AU17DVRM spark plug is 1.9 cm; a 16 mm hexagon is used to unscrew and screw the devices into the engine. One of the main characteristics is the gap, which in this case is 1 mm. If we talk about stability, then these SZ cannot boast of it, especially if we compare this brand with the Bosch and NGK brands. If you believe the manufacturer, then SZ AU17DVRM are produced using modern technologies and innovations, which makes it possible to achieve a high quality product.

Features of Russian-made SZ are as follows:

According to official data, thanks to the use of a high-quality electrode, the spark of such SZ is more powerful. In addition, the manufacturer assures that the product’s performance is quite high. Of course, this plays an important role, especially when operating the vehicle in winter.
Russian-made spark plugs will require less voltage when starting the engine. And this, in turn, means that the start of the power unit will be faster in conditions of low temperatures.
According to official information, SZ 17DVRM have improved characteristics even at relatively low costs.
Thanks to good sparking, optimal operation of the power unit is achieved (video author - Nail Poroshin).

Advantages and disadvantages

So that you can understand whether these SZ are as high quality as the manufacturer claims, we suggest that you familiarize yourself with the list of their advantages and disadvantages. The data below is based on reviews from our compatriots, so you should rely on them when purchasing.

Let's start with the main advantages that Russian-made products have:

Reduced emissions into the atmosphere. Since spark formation is improved in Russian SZ, the combustion procedure of the air-fuel mixture itself will be more stable. As a result, the use of new SZ makes it possible to reduce the level of exhaust gas emissions into the environment. In addition, if the power unit of your car operates in normal mode, using new SZ can achieve a decrease in fuel consumption. Of course, we are not talking about fabulous numbers, but with normal engine operation, you are guaranteed a five percent fuel economy.
Also, the improved spark formation in the SZ contributes to the overall improvement in the ignition parameter of the combustible mixture. Ultimately, SZ 17DVRM allows ignition of even a lean mixture. Of course, misfires will still occur in the system until engine operation returns to normal, especially when compared with lower quality spark plugs.
One of the main advantages of such candles is their low cost. Actually, thanks to the price, many consumers prefer the Russian product.
If you use original SZ, you will be able to ensure that the engine will operate in normal mode. If everything is in order with the power unit, then it will not trip and will always start without problems (video author - Alex Tkachoff).

Of course, like any other product, these SZ also have their drawbacks, which we will discuss below:

No matter how surprising it may sound, Russian candles can be fake. Naturally, in this case, the heat rating will differ significantly from the original, and accordingly, the car owner will not be able to experience all the benefits of using counterfeit SZ.
Detonation. Many Internet users claim in their reviews that after installing the SZ 17DVRM, the engines of their cars begin to detonate. Detonation is a process in which a metallic knock is clearly heard from under the hood. As experts say, this is “tapping fingers.” Detonation is especially noticeable when driving uphill at low speeds.
Deterioration in vehicle performance. The power unit can operate at reduced power when installing A17DVRM spark plugs. The motor will take longer to accelerate than usual. Many car owners also write about this drawback on the Internet.
Increased fuel consumption. This is a double-edged sword - some consumers claim that gasoline consumption will be reduced when installing the SZ A17DVRM, other users write that fuel consumption increases significantly. At the same time, buyers claim that after dismantling Russian spark plugs and installing higher-quality SZ Denso or NGK instead, fuel consumption returns to normal. We cannot say unequivocally what will happen to fuel consumption when installing the AU17DVRM, but we are obliged to convey information to you.
Also, many Internet users claim that the service life of domestically produced SZ is significantly lower than what the manufacturer assures.

How does a spark plug work?

Consists of the following elements:

tip (contact pin);
insulator ribs;
insulator;
base;
seals;
side electrode;
central electrode;
metal body;
ring sealing.

Tip. Its task is to transmit voltage to the central electrode through a special conductive rod. On a high-quality candle, the tip should not unscrew. If it is removed, this indicates a low-quality product.

The insulator is made from a special ceramic material. The insulator has a wavy appearance; due to the parameters and number of waves, the voltage path can be lengthened.

Metal body. Looking at the body of the spark plug you can tell a lot. For example, whether it is of high quality or not, find out the manufacturer. If you can see rainbow tints on the case, then we can safely say that it is a fake, because the tints mean that the product has not completely undergone heat treatment.

Metal ring. The ring serves to create a tight connection between the spark plug and the cylinder block.

The internal seal is designed to fix the ceramic insulator and improve thermal conductivity.

The insulator cone (the base of the wavy insulator) can be in the shape of a barrel or a cone, it all depends on the purpose of the candle. Inside it there is a central electrode, based on the appearance of which, the operation of a particular cylinder can be characterized.

The technological chamfer makes it easier to fit the spark plug into the cylinder head.

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Side electrode. It has a curved shape at 90º C, and contains platinum plating, which improves its properties and long service life. There may be several side electrodes in the package.

Air gap. The space between the ceramic insulator and the metal body is designed to reduce and self-clean carbon deposits. The gap size is indicated by the last digits in the model name.

Central electrode. It is made of special alloys that are resistant to high temperatures and can have different heights and diameters.

Ceramic body. Its presence allows you to isolate the central electrode from the ground and can withstand a voltage of 50 kV.

There is a thread on the body with which the spark plug is attached to the cylinder head. The body has a turnkey hexagon shape and is coated with a special anti-corrosion substance. The supporting surface can be either conical or flat. The spark plug ring serves as a sealing element for the spark plug hole. High quality ceramics are used for insulation. To avoid loss of electricity, special grooves are provided on its surface, onto which glaze is applied, and the insulator area on the side of the combustion chamber is made in the form of a cone. In the middle of the ceramic part there is a central electrode and a contact rod, and perhaps a resistor is located between them. It is designed to suppress possible radio interference. The side electrode is welded to the metal body. Alloys for electrodes have high heat resistance. In order to maximize service life, spark plugs are introduced that have several side electrodes, which are coated with a ball of platinum or iridium. Their service life is up to 100,000 km.

What can candles say?

The condition of the spark plugs can indicate existing problems with the engine. For example, if the electrode is covered with black carbon deposits, this indicates an enriched fuel-air mixture. As a rule, such engines simultaneously experience increased fuel consumption. But if there is light gray or white carbon deposits on the electrode, then the engine is running on a lean mixture, which can lead to overheating of the combustion chamber.

If there is a small skirt with a reddish tint on the central electrode, this indicates a high content of various additives in the fuel. As a rule, such deposits are also found inside the engine. Accordingly, it will be necessary to clean the engine using ultrasound and special injector cleaners.

If there are oil smudges on the spark plugs, this indicates increased oil consumption and problems with the valve stem seals. Such an engine has a bluish exhaust color and a characteristic smell of exhaust gases.

Spark plug markings

If you have any difficulties finding tables that help determine the heat rating of devices from a particular manufacturer, when purchasing, you should pay attention to the markings of the spark plugs, indicated directly on the products themselves. Domestic devices have corresponding markings, where the numbers indicate the value of the heat value:

Domestic devices have corresponding markings, where the numbers indicate the value of the heat value:

11 – 14 (“hot” candles);
17 – 19 (“medium” candles);
indicator from 20 and above – “cold” candles;
value from 11 to 20 on the device – unified candles.

In the recent past, on the products of some foreign companies, the thermal characteristics of devices were indicated by time - in seconds, after which glow ignition occurred.

These values exceed domestic indicators by approximately 10 times. Currently, foreign companies producing spark plugs use a conventional heat value in their labeling.

Is it possible to use spark plugs with the same characteristics for gas and gasoline?

Having installed gas-cylinder equipment on his own car, the owner will a priori be puzzled by the question of whether spark plugs are suitable for gas and gasoline, that is, whether it is possible to use devices with the same heat rating values. The gas mixture is significantly leaner than traditional fuel.

Accordingly, a higher voltage is required to ignite the fuel-air mixture. If gasoline engines require 14 kW, then a gas engine requires 16 kW.

During periods of ignition and subsequent combustion of the gas mixture, the temperature in the chamber where these processes occur is much higher.

These properties of the gas mixture imply the use of devices with a low heat index, that is, “hot” candles.

Heat number - what is important to know

Heat number is the ability of candles to accumulate heat.

An operating temperature of several thousand degrees and an electrical voltage of 30,000V makes this indicator extremely important. Candles are divided into two types: cold - the heat number is high; hot - small.

Domestic candles have gradations: 8, 10, 11, 14, 17, 20, 23 and 26; imported ones do not support uniform standards.

Different engines create unique thermal loads. When choosing an analogue candle, you need to take this into account.

Applicability of spark plug NGK BPR6ES-11

Suitable for cars and engines

NGK BPR6ES-11 on Mitsubishi

Installed on Mitsubishi cars

Colt CJ1A 1.3i 4G13 after 6.2000 Colt C12A 1.5 G15B with catalyst 8.1984- C52A 1.5i 4G15 83 hp Lancer C61A) 1.3 12V (4G13) to 4.1991 (C12A) 1.5 (G15B) with catalyst 8.1984- Lancer 4WD C77A 1.8i 4G37 Sigma (F16A) Sigma Wagon (F07W) 3.0i SOHC 12V (6G72) Galant E15A 2.0 4G6 3) with catalyst E33A Eclipse D21A 1.8i 4G37 (D32A) 2.0i Turbo 4G63T L200 4WD K33T 2.6 G54B L300 (P04V/W, P14V, P24V/W) 2.4i 4G64 Pajero (L042G) 2.6 +kat (L047G) 2.6 4G 54 with Space Wagon N34W catalyst 2.4i 4G64 produced before May 1992 right-hand drive Mitsubishi Eterna Sava (E32A) 1.8 4G37 Lancer Mirage Wagon 4WD C37W 1.8i 4G37

How to choose the right spark plug

It is important to purchase high-quality spare parts for a car; in order to buy a good product, you need to pay attention to the following selection criteria:

1. It is necessary to order a product compatible with the machine's engine. Most of the best brands clearly indicate the vehicle models their product will be compatible with. Therefore, you need to carefully review the manufacturer's compliance list.

2. Apart from compatibility, you need to choose the design type as there are various options available. The most common:

Copper-Nickel: The name may confuse you because these products are primarily made of nickel, with only the inner core being made of copper. It conducts current well, which is why most electrodes are made from it. The product is inexpensive, its disadvantage is that it has a short service life, even if used in a high-energy ignition system without a distributor. Many vehicles will benefit from this option; it is suitable for natural gas engines.
The next type has a platinum center contact. It is expensive due to the rarity of this element, which is harder than nickel, so you can be sure that the product will not corrode. The platinum will prevent the tip gap from widening and wearing out, which directly affects the efficiency of the engine. There are models with one or more electrodes. This helps generate the spark in the best possible way. In terms of service life, it is twice that of standard nickel/copper construction.
Iridium Product: If you want flawless, smooth motor performance, there is nothing better than an Iridium product. It has a longer service life than traditional models. The thin wire central contacts are designed to conduct current most efficiently. These are expensive products, but the price is offset by incredible performance.
Silver candles are an option with the best thermal conductivity. The problem with this product is its durability. The precious metal cannot match the durability of platinum or iridium models.

It is important to decide: “What kind of ignition is needed, cold or hot?” To give a very simple but precise definition, we can say that candles that glow during operation are hot

And those that do not reach high temperatures are cold.

The metal shell of the structure operates at the same heat as the head. The elements are screwed to each other, forming a chamber in which heat is distributed evenly. Hot models have a long insulator tip with a large surface area, causing all parts to become hot. At the same time, cold ones have a small cap that helps quickly remove excess degrees from the combustion zone.

Russian-made models usually have a numerical heat rating. Their assessment is not always consistent because some brands give higher values while others underestimate.

It becomes extremely difficult for buyers to choose the right product with so many options. It is best to order the design in accordance with the car's engine and year of manufacture.

4. If you do not want to suffer for a long time during replacement, it is better to choose a design that is easy to install. By applying the above selection criteria, a productive model can be easily determined.

Below is a table of compatibility of spark plugs for a Lada car:

8 valves	16 valves
JSC ZAZS, Russia	A17DVRM	AU17DVRM
BERU, Germany	14R-7DU	14FR-7DU
CHAMPION, England	RN9YC	RC9YC
NGK, Japan	BPR6ES	BCPR6ES
DENSO, Japan	W20EPR	Q20PR-U11
BRISK, Czech Republic	LR15YC	DR15YC
BOSCH, Germany	WR7DC	FR7DCU

Spark plugs А17ДВРМ, BRISK, Bosch

This article is devoted to the choice of candles for a grant, if you adhere only to the official recommendations of the VAZ.
Only spark plugs listed in the Owner's Manual will be considered. After 30 thousand km at TO2 it is necessary to change the spark plugs - this is written in the service book. And immediately the agony of choice arises - which candles to put in a modern style. In the official Granta liftback operating manual (Appendix 3), 3 types of spark plugs are recommended for an 8-valve engine:

(1) А17ДВРМ JSC "Robert Bosch Saratov" (2) LR15YC-1 BRISK (3) WR7DCX Bosch

Let's look at each of these candles.

(1) Spark plugs А17ДВРМ

are manufactured at the Bosch plant in the city of Engels, Saratov region.

Autoreview has an old article from 2002 about this plant. In short, there was an old Soviet factory for the production of industrial ceramics and glow plugs, founded in 1942. After the collapse of the union, the plant (suddenly) fell into decay, for reasons known to all. In 1996 it was purchased by Bosch. In general, Bosch, in addition to Germany and Russia, has three more candle factories - in India, China and Brazil. As stated in the same old article, the products of all factories do not differ in quality and are sold not only to local markets, but also for export. All processes there are automated, and the function of people is reduced to transferring material from one machine to another. It seems that spark plugs from this factory used to be on frets from the assembly line.

(2) Spark plugs LR15YC-1

Czech company BRISK stand in modern harmony. The company is Czech, but the production is Russian - in 2016, a plant was opened in Togliatti, the products from which go to the assembly line. I drove 30 thousand km on these spark plugs without any problems. Here is their status:

(3) Bosch WR7DCX

(0242235530) discontinued back in 2004:

They were replaced by WR7DCX+

. Perhaps they were previously manufactured in Germany, but today in Russia I could only find those manufactured at the same Bosch plant in the city of Engels:

I did not consider these candles for two reasons. Firstly, there is not a word about them in the Guide. Secondly, most likely these are just the same A17DVRM JSC Robert Bosch Saratov

, just in a different package. If you arrive at the MOT without your spark plugs, you may be given these spark plugs by default. Just like with motor oil. If you arrive without yours, they will fill you with Lada Professional 5w-40 or Lada Ultra 5w-40 (which were actually first Lukoil, and now Rosneft).

Positive and negative reviews can be found for each of these candles. I chose the BRISK LR15YC-1 for several reasons. Firstly, in 30 thousand km and 1.5 years I have not had any problems with them. During all this time, the starter only worked longer than usual a couple of times. Secondly, in the Autoreview article there is information that the ECU is optimized for working with spark plugs that come from the assembly line. This article is only available with a paid subscription, so I will quote here:

“The “brain” of the ignition system, the role of which in our case is played by the January-5.1 controller, depending on the speed and load, changes the ignition timing in accordance with the program embedded in it, designed for standard EZ A17 AVRM spark plugs.”

The article is old, and at that time the standard ones were EZ A17 AVRM. Today the standard ones are BRISK LR15YC-1, and the ECU algorithms are probably optimized specifically for these spark plugs.

There is only one thing that confuses me about these candles. On the Internet you can find this photo of the packaging (taken here):

But I was only able to buy it in this package:

NGK Iridium Spark Plugs

Iridium ngk spark plugs are considered the best solution, as they have excellent quality. Iridium is a noble metal and the hardest. This metal melts at a temperature of 2450 degrees. If you compare an iridium spark plug with a regular spark plug, it will last you twice as long.

NGK iridium spark plugs have a platinum plate on the middle electrode. It provides high spark plug power even in difficult conditions. These spark plugs have a thin middle electrode and less voltage is required during ignition.

Innovative technologies have developed such a system that electrical charges occur in the annular gap between the middle electrode and the insulator. Thanks to this, soot particles that collect in this area are removed. The self-cleaning effect of such candles extends their lifespan.

Noble metals: practical meaning of application

Wiring diagram of the ignition switch VAZ 2108. ignition switch block VAZ 2109

As we already said in the last paragraph, the transition to a multi-electrode circuit did not bring much practical benefit in increasing the service life of spark plugs. In fact, the fight against the very cause of natural wear of spark plugs, that is, erosion of contacts, was replaced with a palliative - the substitution of “spare” ones. To increase the immediate reliability of the electrodes, the design of the spark plugs was significantly redesigned.

In “platinum” and “iridium” spark plugs, the main feature that catches the eye is a very thin central electrode, which precisely localizes the point of origin of the spark - opposite it, a plaque of the corresponding metal is soldered on the side electrode, and the central electrode is also covered with it.

The advantages of such candles are obvious: the electrodes have a service life that, under normal conditions, is two to three times longer than that of conventional candles. The thin central electrode is perfectly self-cleaning, which also contributes to reliable operation.

The disadvantages, alas, are also significant. The first is the price: a set with the Platinum or Iridium inscription will cost at least two to three times more than regular candles. The second, oddly enough, is tenderness: non-fading carbon deposits instantly kill such candles, and mechanical cleaning is contraindicated for them, just like the old-fashioned burning with a torch. First of all, we are, of course, talking about the notorious ferrocene, which is still not uncommon to encounter.

The main criteria by which selection is carried out

Products from various brands

Modern motors are manufactured with certain design features that provide them with certain technical characteristics. For normal operation of the power unit, it is necessary to install an SZ, with certain parameters corresponding to the type of car engine

When choosing an analogue of SZ, you should pay attention to their main parameters:

Screw-in dimensions:

length of the threaded part;
thread pitch;
thread diameter;
turnkey hexagon dimensions.

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Products with overall and connecting dimensions that do not correspond to the engine type cannot be mounted on the power unit. The use of devices with a threaded part that is too long or short, in most cases ends in a major overhaul of the car engine.

The thermal part of the analogue should be as close as possible to the characteristics of the original. We are talking about the heat number, which reflects the ability of candle products to heat up at different thermal loads of the engine. Please note, when selecting SZ for compatibility, that domestic products are marked indicating the heat number, while foreign ones are divided into cold (having a large heat number) and hot (having a small heat number).
The distance between the spark plug contacts must correspond to the size specified in the machine manual. An increased spark plug gap will lead to a decrease in spark power, and a reduced gap will lead to breakdowns in the ignition system.
Number of spark plug electrodes. Many motorists are of the opinion: the more spark plug contacts, the stronger the sparking. This is an erroneous statement; the spark occurs between two contacts. In multi-contact devices, the operating principle is as follows: if one electrode burns, sparking will occur on the second. Such modernization of the SZ design makes it possible to increase their operational period, but does not affect the spark power.
The material from which the spark plug contacts are made. It is possible to buy iridium, platinum or classic candles. The operational period of the product, the rate of formation and the power of the spark depend on the material of their contacts.

We recommend watching a video about how the SZ marking is deciphered:

Pros and cons of iridium spark plugs

Companies that produce vehicles do not forget to work on improving the operation of such an important part as the spark plug. The technical characteristics of the candles and their service life depend on the quality of the material used.

Innovative technologies have made it possible to use iridium in candles. Its alloy is used in the manufacture of central electrodes for spark plugs. The core in iridium spark plugs is small, smaller than in similar spark plugs. The use of such spark plugs allows the engine to develop maximum permissible power.

Laser welding is used to weld the iridium tip to the electrode circumference. This candle is very reliable.

Iridium spark plugs improve engine economics. The smaller the center electrode of the spark plug, the better the engine performance.

The advantages of such candles are obvious. Their advantages:

The power of the engine used is increased by up to four percent.
The engine starts easily and simply even at low temperatures.
Less fuel is consumed. Save up to seven percent.
The service life of candles increases almost three times.

They also have their disadvantages.

Applied technologies and their features

In the production of Akom batteries, modern calcium technology is used, designated as follows: Ca-Ca, or Calcium-Calcium. Its essence is that calcium, not antimony, is added to lead during the manufacture of electrodes. The latter is not used at all in the production of Akom. This makes the products safer for humans and the environment, and the batteries more reliable. This technology increases the strength and durability of the product, reduces fluid consumption, and increases resistance to deep discharge.

Expanded Metal Technology Ca/Ca

Also, in the manufacture of gratings, instead of casting, rolling technology is used. This protects the plates from wear, oxidation and corrosion, and increases current characteristics.

The starting power of Akom batteries is higher than that of classic batteries, and they are also easier to start at sub-zero temperatures. The equipment is resistant to self-discharge and overcharging.

All Akom battery models are maintenance-free. The operating level of the electrolyte remains unchanged when used correctly for three years. It does not boil over (if the voltage does not exceed 16 V), there is no need to remove the lid and add water.

Domestic or foreign, how to choose?

Different types of protective equipment from one manufacturer

Candles from foreign manufacturers do not have specific labeling requirements. Russian products must contain symbols indicating the following information:

name of the manufacturer or company logo;
date of manufacture;
designation “made in Russia” or RUS;
markings that comply with state standards.

Foreign candles are marked according to a similar principle to domestic devices. However, their designation is deciphered differently. Products of different brands, for example “BRISK” and “NGK” with the same parameters have different designations. The lack of generally accepted labeling standards significantly complicates the selection of an analogue

To choose the right SZ, you should use the table of interchangeability of spark plugs or pay attention to the packaging of the spark plug, it contains information indicating for which types of engines the SZ is suitable

Table. Selection of the main types of protective equipment from different brands based on compatibility.

If it is impossible to find an analogue for candles, then a dash is placed in the table.

Distinctive features of cuts produced in Russia

Distinctive features of candles:

one of the EZ turning marks. APS) on the insulator;

The white insulator has three grooves in the upper part;

on the insulator there is an image of a trademark, a symbol for the type of candle and the date of manufacture of the insulator, encrypted with a three-digit number; the inscription “Russia” is embossed on the metal case, one diamond is applied on both sides of the inscription, then the quarter of manufacture in Roman numerals and the last two digits of the year of manufacture in Arabic numerals, then a corrugation consisting of vertical dashes located from the inscription to the date of manufacture.

"UZETI" "RGUP "UAPO"

Ufa Plant of Electrical Products, part of the Federal State Institution "Ufa Aggregate Production Association"

FSUE-UAPO began production of spark plugs in 1966 with the production of the A7.5SS spark plug for the M-412 engine of the Moskvich* car.

In connection with the expansion of the range and growth of production, the need for specialization arose, the Ufa Plant of Electrical Products -UZETI- was formed as part of the Federal State Unitary Enterprise

“UAPO-UZETI produces At 1-1 spark plugs; A11-3: A14B; A14B-2; A14VR; A14D; A14DV; A14DVRM; A17B. A17D; A17DV-1; A17DV-10. A17DVRM. AU17DVRM. A20D-1; A23B: A23DM; A23DVRM; AU23DVRM and SI-12RT. Production is carried out according to a full production cycle from the preparation of raw materials to finished products, since the plant has its own ceramic production of insulators using the isostatic pressing method.

Rating of the best spark plugs

They are divided into several categories:

Budget - up to 200 rubles;
The average price range is from 200 to 500 rubles;
Premium – from 500 rub.

BRISK L15Y

This type of spark plug has one central electrode made of a special nickel-based alloy. This allows the spark plugs to work perfectly on engines without catalysts. Has 1 side electrode. The electrodes are resistant to carbon deposits. The outside of the candle is galvanized with zinc for protection.

Characteristics:

external thread – 14 mm;
thread length – 19 mm;
wrench – 16;
distance between electrodes – 0.7 mm;
heat number – 15 units.

Price – about 50 rubles. for 1 piece

Gap

Factors that determine clearance

Insulation breakdown is the loss of insulating properties by insulation when the voltage exceeds a certain critical value, called the breakdown voltage Upr. The corresponding electric field strength Epr = U pr/h, where h is the distance between the electrodes, is called the electrical strength of the gap.

Spark plug interchangeability table.

Note. * non-standard designation of a spark plug with two “ground” electrodes. n.d. - no data. The completeness and spark gaps of analogue spark plugs may differ.

Now let's look at the table in more detail.

A17DV.

Country of origin: Russia.

On which cars it is used: VAZ 2101-2107 and their modifications until 1988.

Analogues:

BOSCH (Germany) – W7D;
NIPPON (Japan) – DENCO W20EP-U;
NGK (Japan) – BP6ES;
AC DELCO (USA) – 42XLS;
BRISK (Czech Republic) – L15YC;
BERU (Germany) – 14-7DU;
CHAMPION (USA) – N9Y;
EYQUEN (France, Italy) – 750LS.

A17DVM.

Country of origin: Russia.

On which cars it is used: VAZ 2101-2107 and their modifications until 1988.

Analogues:

BOSCH (Germany) – W7DC;
NIPPON (Japan) – W20EP-U;
AC DELCO (USA) - C42XLC;
BRISK (Czech Republic) – L15YC;
CHAMPION (USA) – N9YC;
NGK (Japan) – BP6ES;
BERU (Germany) – 14-7DU;
EYQUEM (France, Italy) – C62LS.

A17DVRM.

Country of origin: Russia.

On which cars it is used: VAZ 2104-2111 and all their modifications.

Analogues:

BERU (Germany) – 14R-7DU;
BOSCH (Germany) – WR7DC;
NIPPON (Japan) – W20EPR;
AC DELCO (USA) – CR42XLC;
BRISK (Czech Republic) – LR15YC;
NGK (Japan) – BPR6ES;
CHAMPION (USA) – RN9YC.

A10.

Country of origin: Russia.

On what vehicles is it used: ZIL-157KD and its modifications.

Analogues:

BOSCH (Germany) – W9AC;
AC DELCO (USA) – 46F;
BRISK (Czech Republic) – N19;
NGK (Japan) – B4H;
BERU (Germany) – 14-10A;
AUTO LITE (USA) – 416;
CHAMPION (USA) – L90.

A20D.

Country of origin: Russia.

On what vehicles is it used: AZLK, IZH.

Analogues:

BOSCH (Germany) – W6CC;
MARELLI (Italy) – 7LPR;
BRISK (Czech Republic) – L14;
NGK (Japan) – B7ES;
BERU (Germany) – 14-6CU;
AUTO LITE (USA) – 4054;
CHAMPION (USA) – N3C.

A14B and A14B-2.

Country of origin: Russia.

On which vehicles is it used:

GAZ-24;
buses: RAF, ErAZ;
motorcycles: “Dnepr” and “Ural”.

Analogues:

BOSCH (Germany) – W8BC;
AC DELCO (USA) – 43FS;
BRISK (Czech Republic) – N17YC;
NGK (Japan) – BP5HS;
BERU (Germany) – 14-8B;
CHAMPION (USA) – L92YC;
AUTO LITE (USA) – 275;
MARELLI (Italy) – F7NC;
NIPPON (Japan) – W14FP;
EYQUEN (France, Italy) – 550S.

A14D.

Country of origin: Russia.

On what cars is it used: GAZ-3102.

Analogues:

BOSCH (Germany) - W8CC;
BRISK (Czech Republic) – L17C;
NGK (Japan) – B5ES;
BERU (Germany) – 14-8C;
CHAMPION (USA) – N5C;
AC DELCO (USA) – 43XL;
MARELLI (Italy) – CW6L;
NIPPON (Japan) – W17ES;
AUTO LITE (USA) – 394;
EYQUEN (France, Italy) – 600L.

A11 and A11-3.

Country of origin: Russia.

On which cars it is used: GAZ, ZIL, UAZ.

Analogues:

BOSCH (Germany) – W9AC;
BRISK (Czech Republic) – N19;
NGK (Japan) – B4H;
BERU (Germany) – 14-10A;
CHAMPION (USA) – L86C;
AUTO LITE (USA) – 416;
MARELLI (Italy) – CW4N;
AC DELCO (USA) – 45F, 420Z;
EYQUEN (France, Italy) – 406.

A14DV.

Country of origin: Russia.

On what cars is it used: GAZ-14, GAZ-3102 and its modifications.

Analogues:

BOSCH (Germany) – W8DC;
AC DELCO (USA) – 43XLS;
BRISK (Czech Republic) – L17C;
NGK (Japan) – BP5ES;
BERU (Germany) – 14-8DU;
CHAMPION (USA) – N11YC;
MARELLI (Italy) – CW6LP;
AUTO LITE (USA) – 55;
EYQUEN (France, Italy) – 600LS.